X-ray photographing appliance



G. E. RICHARDS. X-RAY PHOTOGRAPHI'NG APPLIANCE.

APPLICATION FILED JUNE 20,1919.'

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The principal feature of the invention' UNHE STATES GORDON E. RICHARDS,F TORNT, NTARIO, CANADA.'

X-RAY PHOTOGRAPHING APPLEANCE.

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Specification of Letters Patent.

Patented. fijar. 11.23,

Application led June 20, 1919. Serial No. 305,576.

nite position and to enable the operator ob" taining the necessaryadjustment moving the patient to the desired position with ease and.adjusting theplate' holder to the required position.

A further object is to enable the operator to denitely locate theposition of the plate in relation to the patient and the particularportion ofthe anatomy to be photoconsists in the novel construction `andarrangement of parts, whereby a locating frame is slidably adjustableupon a supplementary frame adapted to be placed upon the operatingtable, said slidable frame being adapted to receive andsupport the bodyof the patient in a definite position, and whereby the: plate' holder isadapted to be adjusted longitudinally and ltransversely withoutinterfering with or moving the patient.

A further feature `consists in the novel arrangement of an opaque memberupon the plate holder whereby the adjustable plate holder is definitelylocated.

In the drawings, Figure 1 is a perspective view of a device constructedin accord ance with this invention, a portion of the holder for locatingthe patient being broken away.

Fig. 2 is a longitudinal mid-.sectional vieu through the device.

The device shown inthe accompanying drawings illustrates a structureadapted to be used on the ordinary X-ray operating table and itcomprises a rectangular frame 1 provided with hooks 2 to be hooked overone end of the table to hold it in place. The side rails Bare formedwith the longitudinal dove-tail grooves 4t extending from end to end`thereof. The rectangular frame 5 rests upon the frame' 1 and isprovided with dovetail tongues 6 extending longitudinaliy of the siderails and fitting the groot/*es 111 beA ing slidable therein. t. Y

The outer edge of one of the longitudinal members of the frame 5 isprovidedlwith the metallic toothed rack 7 which extends from end to end.rhis rack is engaged by a re- 'tat-able latch member 8 piif'otaliysecured to the side rail 3 of the 'frame 1 at a convenient point andsaid latch member is adapted to engage the rack to hold the frame in anydesirable adjustment as it is moved lou: gitudinally in its groovedsupport.

The inside edges 9 of the longitiulinal.

members of the frame 5 are formed with the rabbeted grooves 10 andbetween these sides is slidably arranged a frame 11.

A pair of transversely arranged bars 12 and'13 are secured to the frame11 and e1;- tend over the 'top faces of the side bars of the frame 5 andeach is provided with ati-abbet tongue lei to receive the transverselyslidable member l5. i

The lower bar 13 is of greater width than the thickness of the member 15and forms a ledge 16 against which the photographic plate liolderislaid.

The slidable member 15 is provided with an end strip 17 against whichthe end of the plate holder is located and the inember 15 is providedwith a handle 18 at the front end by which the member is operatedtransversely in its guides. f

The frame 11 is secured in adjusted positions longitudinally of theframe 5 by means of a ratchet dog 19 rigidly secured to one end of thebar 13 and engaging a toothed metal rack 20 bedded 'in a Ylongitudinalgroove 2&1 in one of the side members ofthe frame The member i5 hasembedded in one side thereof a metal ring 22 which is used for thepurpose of locating the proper position .of the plate. in relation tothe patient. The

center of said ring is arranged to coincide with the center of aphotographic plate when the holder is placed against the bar 13 andagainst the end strip 17 of the mema bridge structure formed by a strip23 of canvas or leather stretched between the brace members 24 and 25rigidly secured to theyframe 5. A head support 26 -is arranged beyondthe member 24e andbeyond be readily altere be repeated continuously forsuitable 3e- A made of Wood and the member 25 is arranged a knee or legsupport.'

The member 23 is of concaved formation i adapted to form a comfortablerestfor the bod of the patient.

j and grips 27 are secured to either side of the brace member 24 toenable the patients steadying themselves or to shift their position.

The device may be used in a vertical position or may of cou-rse betilted at any angle as maybe desired bythevoperating physician; Theposition of the patient may by sliding the frame 5 on the `frame 1andthe plate holding trame 11 is Vadjusted in the longitudinal' groovesin the frame 5 until the slide member 15 is brought to the desiredposition, the same being located in relation to any portion of theantomy which it is desired to have centered upon the plate. When locatedthe frame 11 is locked by means of the ratchet 19 and the operatorplaces the plates upon the slide member 15 which may be moved .inwardlyclose to the patient and again moved outwardly in order to `quicklyrecover-the plate holder. This operation may riods in obtaining a seriesof plates in 'ollowing the action or" the internal organs. The device isextremely simple, is preferably is light and easy to handle. Y A

The concaved form ot' the member :23 is ofvery great importance as itconforms to the curvature of the body and maintains the organs in theirnatural position.

What l, claim as my invention isa-1 1. ln an X-ray photographingappliance, the combination with the operating table, of a trainelongitudinally adjustable upon the table and adapted to support thepatient, and a plate holding member supportedon said adjustabley frameand longitudinally and transversely adjustable vinfrelation to saidframe. v

2. Inan vX-ray photographing appliance,

v4the combination with the operating table, of

a base frame adapted to be secured to the table and having longitudinalguides, a trarne longitudinally slidable upon said guides for supportingthe patient, means for holding said frame in adjrnstedI positions, and aplate holder supported uponv the ad justable frame and adapted to. beadjusted longitudinally and transversely independent l of said suporting frame;

3. AnA T-ray photographing appliance,

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comprising a rectangular shaped base adapted to be placed upon anoperating table and having longitudinal dove tail grooves extendingi'ro'm end to end thereof, a rectangular traine f having dovetailtongues slidably engaging 'the grooves in the aforesaid trame, atoothed rack secured to thebase frame, a ratchet member carried on themovabley frame and engaging said rack to hold it in adjusted positlons,a body supporting structure secured to the latter` frame and spacedtherefrom, and a plate holder arranged between said supporting structureand the trame and adjustable transversel and longitudinally.

l. An I -ray photographing appliance,

saidlongitudinal guidevvay and having a` pair of transverse guides, atoothed rack arranged upon the supporting frame, a

locking member secured to said longitudinal adjustable trame 'andholding it in adjusted positions, and a groovedbar slidably enn lragingsaid transverse guides -on said frame having an end stop.

6. n X-ray photographing appliance, comprisinga frame for supporting thepatient and Vhaving a recess in the length thereof, a member`longitudinali 1 adjustable in said Ii'ecess, a plate hol ertransversely adjustable upon said longitudinally adjustableinelnber, anda metallic centering member secured to said plate holder and adapted toindicatethe position of the plate in relation to the patient.

"7. eint X-ray photographing appliance, comprising a structure forsupporting' the patient having a concaved surface extendinglongitudinally ot the central portion, a

recess arranged beneath saidconcaved portion 'and opening tothe side,`and a plate holder transversely and longitudinally adjustable'withinsaid recess.

GORDQN E. RICHARDS

